Descent speed control for exercise stair

Details Descent speed control for exercise stair Descent speed control for exercise stair

1984-08-02

1987-08-11

Apley, Richard J.

Undertaking

272 70, A63B 2100

Patent

active

046856692

ABSTRACT:
Apparatus that controls the cycle rate of various incline or stair-climbing simulation exercise machines in a nonlinear fashion so that the downward step movement is slowed appropriately during portions of its travel to facilitate cyclic "step-up" i.e., raising of the user's center of gravity; this slowing occurring during the uppermost portion of the step's descent (and/or the lowermost portion in some cases) while the rest of the descent is made at higher speed; including a pair of hydraulic cylinders serving as a means of coupling the steps together and dissipating the energy transmitted by the user, the flow of fluid between the cylinders being controlled during the step descent by variable orifices controlled by cams or a cam/switch/solenoid system.

REFERENCES:
patent: 2079594 (1937-05-01), Clem
patent: 3529474 (1970-09-01), Olson et al.
patent: 3530766 (1970-09-01), Pilch
patent: 3970302 (1976-07-01), McFee
patent: 4063726 (1977-12-01), Wilson
patent: 4241641 (1980-12-01), Reinert
patent: 4477072 (1984-10-01), DeCloux
patent: 4496147 (1985-01-01), DeCloux et al.
patent: 4519603 (1985-05-01), DeCloux

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